Simplify Http.send API more
Simplify Http.send API more

eeue56/core,laszlopandy/core,bradurani/core,martinos/core,suryagaddipati/core,alexiamcdonald/elm-core,isaacsanders/core,rick68/core,colinmccabe/core,ThomasWeiser/core,suryagaddipati/core,martinos/core,Dandandan/core,vilterp/core,vilterp/core,rgrempel/core,ThomasWeiser/core,simonh1000/core,isaacsanders/core,rick68/core,bradurani/core,eeue56/core,alexiamcdonald/elm-core,simonh1000/core,laszlopandy/core,rgrempel/core,Pisys/core,colinmccabe/core,Dandandan/core,Pisys/core